Home / 13,392-20,400

Finding the Third Proportional to 13,392 and 20,400

Calculator

Solution

The third proportional to 13,392 and 20,400 is: 31,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392 : 20,400 = 20,400 : x
  2. Step 2: Convert to fraction form
    13,392/20,400 = 20,400/x
  3. Step 3: Cross multiply
    13,392x = 20,400 × 20,400
  4. Step 4: Simplify right side
    13,392x = 416,160,000
  5. Step 5: Solve for x
    x = 416,160,000/13,392
  6. Step 6: Final answer
    x = 31,075.27

Related Problems

Find third proportional to 6,696 and 10,200
Half scale
Find third proportional to 26,784 and 40,800
Double scale
Find third proportional to 13,394 and 20,403
Similar ratio
Find third proportional to 20,088 and 30,600
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.